AI-based coding has exploded in popularity on the promise that it will make developers’ jobs faster and easier. But it’s also resulted in something else: a vast increase in lines of code, and thus the likelihood of bugs resulting in crashes or other mishaps. Today, an Israeli startup called Lightrun — which has built an observability platform to identify and debug (remediate) code before those problems arise — is announcing a Series B of $70 million. The funding underscores the not just the gap in the market for tools like these, but also…